8/16/2023 0 Comments Unity physics raycastThe other option is to work with layer based collision detection and layermasks to ignore the layer of the collider you start the raycast from. When the ray detects the enemy, the enemy script should fire its 'TakeDamage' method which decreases the 'curHealth' variable by 8. There is a method on your collider instance where you can raycast from the transform.position to ignore the collider you cast from (but you can't change the position where the raycast starts from): Problem Step -> 4) When the player raises their gun and attempts to shoot the closest enemy, a ray is cast with a layermask that looks only for objects on the layer 'Enemy', the 8th layer. This can easily be detected because such results are always at a RaycastHit2D fraction of zero". This means that the collision normal cannot be calculated, in which case the returned collision normal is set to the inverse of the ray vector being tested. In this case, the ray starts inside the Collider and doesn't intersect the Collider surface. > "Additionally, this will also detect Collider(s) at the start of the ray. So if you start it at the center of some collider, as it travels out, it will likely hit itself ( ) This overlap information serves as input for application-specific logic, such as sensors, custom physics forces, and more. Note that in 2D, Raycasts will also detect when they wander outside of an object. Physics queries, such as Physics.Raycast, are multipurpose tools that can discover physics objects and their overlaps at certain locations. You are using the default one, which checks a ray at a given distance, modifies a RaycastHit, this method returns true if it hits anything, even the origin's object, and since you are casting it from transform.position which will: Always return true. The image really doesnt show anything useful TBH such as what is wrong. Reddit Logo created by /u/big-ish from /r/redditlogos! You should check all Physics.Raycast overloads on the Documentation. Long series.ĬSS created by Sean O'Dowd, Maintained and updated by Louis Hong /u/loolo78 Favors theory over implementation but leaves source in video description. Normally part of a series.Īlmost entirely shader tutorials. Lots of graphics/shader programming tutorials in addition to "normal" C# tutorials. Using Version Control with Unit圓d (Mercurial) Related SubredditsĬoncise tutorials. Unity Game Engine Syllabus (Getting Started Guide)ĥ0 Tips and Best Practices for Unity (2016 Edition) Lots of professionals hang out there.įreeNode IRC Chatroom Helpful Unit圓D Links Physics.Raycast misses randomly komatii Joined: Posts: 58 Im using Physics.Raycast on my bullets to determine if they hit something, however it doesnt always work. Use the chat room if you're new to Unity or have a quick question. Please refer to our Wiki before posting! And be sure to flair your post appropriately. Remember to check out /r/unity2D for any 2D specific questions and conversation! A User Showcase of the Unity Game Engine.
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